uPVC A+ Energy Windows.
High-Efficiency and Versatile Design
Energy Efficient Windows
Energy Efficient Windows that meet the highest standards for energy efficiency and versatility. Designed to enhance modern and traditional homes, our uPVC windows ensure superior thermal performance and long-lasting durability.
Exceptional Energy Ratings
Our A+ uPVC windows are BFRC-approved, achieving impressive energy ratings of B, A, A+, and A++ when combined with triple glazing options. As of June 15, 2022, all windows and doors must meet a minimum U-Value of 1.4W/m²K, ensuring compliance with current regulations and offering outstanding thermal performance.
Comprehensive U-Value Testing
To ensure our windows meet the highest energy efficiency standards, all windows conduct rigorous U-value testing. This process evaluates the entire window, including the outer frame and air leakage through the glazed frames. Key factors in our testing include:
- Insulation of the uPVC frame
- Shape and area of the frame and glass
- Spacer bar type inside the glass (no more aluminium bars)
- G-value (solar gain)
- Visual Light Transmittance (V.L.T.)
For more details on U-value testing and energy efficiency, visit the BFRC website.
The EnergyPlus System
Southeast Windows Liniar uPVC profiles are meticulously manufactured using advanced state-of-the-art technology. The EnergyPlus system features six multi-chambers that trap warm air, achieving U-values as low as 0.8. When paired with triple glazing, these windows are ideal for Passivhaus homes. Liniar’s patented double-action bubble gasket also ensures a continuous seal around the windows, preventing drafts and ensuring zero air leakage.
A+ Energy-Rated Windows as Standard
We provide A+ energy-rated uPVC windows with slim sightlines, allowing maximum light into your home. Available in various styles, including top or side-hung, arched top, or French casement windows, these windows suit any home. Whether you’re enhancing a modern build or upgrading a period property, our energy-efficient windows meet your needs.
Quick Installation and Goodbye Draughts
We understand the importance of quick project turnaround. Our team can install your made-to-measure Energy Efficient Casement Windows within two weeks of your order, ensuring minimal disruption to your home. With our unique double-action bubble gasket, you can say goodbye to draughts. This patented feature ensures a tight seal, and when combined with the EnergyPlus system, our windows achieve A+13 Solar Gain for maximum efficiency.
Check out the Energy Saving Trust for more information on reducing draughts and improving energy efficiency.
Insulation Tape and Enhanced Soundproofing
All our uPVC casement windows can be upgraded with various features and options, including ISO-BLOCO HYBRATEC Advanced insulation tape, which is applied before installation and creates an airtight seal around the window frame. Once in place, the tape expands and seals against wind-driven rain, making it 100% waterproof and enhancing energy efficiency. It also reduces sound transmission by up to 56db within a 5mm joint. We recommend pairing the insulation tape with Pilkington Optiphon™ Glass Units for superior soundproofing.
Secure and Durable
Southeast Windows Ltd. prioritises security. Our windows feature Secure by Design locking systems, Kendrick Excalibur, which has been tested to 100,000 cycles and is backed by a 10-year mechanical guarantee. These locks undergo at least 240 hours of salt spray testing, significantly limiting intruders’ entry options and offering you peace of mind.
Secure By Design
The manufacturers meticulously design and craft Secured by Design (SBD) windows to meet rigorous police standards of enhanced security. Only an SBD license holder, who undergoes stringent independent UKAS-approved testing, can craft these high-performance products. This testing process ensures the highest quality and provides a certificate as proof of compliance. Additionally, all casement windows must have a secondary clip around the glass to eliminate removal; all exterior glass must be a minimum of 6.4mm laminated safety glass, and all locking systems must be secured by design approval.
Customisation and Style
A+ energy-rated uPVC windows are internally beaded and fully welded, providing enhanced security and durability. These windows offer aesthetics and strength in various styles, including chamfered options for a contemporary look. You can customise them with leaded glass designs, stained glass overlays, astragal bars, or Georgian bars, allowing you to match your windows to your home’s character.
For inspiration on obscure glass design, visit the Pilkington Obscure Glass website.
Modern Build Solutions
Our windows comply with Document Q standards for modern builds and offer versatility in design and security options. Whether you need new windows for a new build project or an upgrade for an existing home, our energy-efficient solutions provide long-term value.
Want to know More?
Call us today for your FREE, no-obligation quotation or fill out our Contact Form! For the most modern, energy-efficient replacement Windows, Doors and Conservatory with a 10-year Insurance Backed Guarantee for complete home Comfort & Designed to Keep You Warm, Safe, & Secure.
Alternatively, call your local number below to arrange an appointment.
East London Double Glazing: 020 8472 4088 (head office)
South London Double Glazing: 0203 856 6667
North London Double Glazing: 0203 856 6669
Epping: 01992 940 809
Chelmsford Double Glazing: 01245 208 058
Romford Double Glazing: 01708 202 457
Great Dunmow Double Glazing: 01371 704 771
